Charles flesch



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CHARLES 'rLEscH or Roon ESTER, Naw` YORK. Letters Patent No. 71,373,datledNovenizber 26, 1867.

IMPROVEMENT IN PERMUTATIOVN LOCKS.

TO ALL WHOM IT MAY CONCERN: i Beit known that I, CHARLES FLESCH,ofiRo'e-hester, in the county-of Monroe, and Stato of New York, haveinvented certain new and useful Improvements in Permutation Locks; and Idol hereby `declare that the following is a full and exact descriptionthereof, reference being had to the accompanying drawings making `partof this specification. i i p f Figure 1 is `an elevation of my improvedlock, with the back plate removed to show theiintcrior. Figurc2, asection in the plane of the spindle. v p Figure 3, a section in plane ofline :v fig. 2, showing themethod of adjusting ,thel spindle. Figure 4,a perspective view of the dog-lever. p i Figure 5, s. view of the platesof one of the combination wheels laid open. Figure 6, a view of thekeys. Like letters of reference indicate corresponding parts in all thefigures.

This improvement is on a plan similar vto that `patented by me February19, 1867, (No. 62,191,) but is intendedto simplify the construction `andllessen the cost. A

The invention consists inthe employment of apivoted weight forholdingthedog elevated from thewheels in the construction of the cam forthrowing the bolt, in the method of adjusting the spindle todoors ofdifferent thicknesses; and in the construction of the combinationwheels. p

As represented in the drawings, A is' the lock-case, B the spindle, C CC the combination wheels, 'and the cam inside, by which the parts areoperated. The general construction and arrangement of the `parts aresimilar to thoseI offrny aforesaid patent. The bolt is formed of twojaws, E E, which shut together to serve as a 4stop to theneavy bolt-workof the safe-door, as shown in iig. 1. These jaws are pivotcd `at aa,`and ,have inter-matching toggles, b b, by which they receive asimultaneous actio'n. The upper jaw` is raised and lowered by thedog-lever G, pivoted at c, and engaging with the said jaw by aprojection, d, fitting in a. loose eye, h.

i When the arm z' of the lever falls into the notches lc k of thewheels, (fig. 4,) and not till then, will the jaw be raised. The leverGr, opposite the arm z', is provided with two iiies or projections, lm,as clearly showntin gs.

1 and'4. The'lly l is intended to act in connection with a camhook, n,of the cam-hcad, lto draw down the end of the lever to open or unlockthe jaws when the wheels are so set that the arm z' can fall into thenotches.

When the wheels are so set the lever will fall of its own weightsuiiiciently to bring the ily Zwithin reach of the` cam-hook, when thelatter, striking over it, will draw i't down as before stated. t Whenthe` cam is turned in the` opposite direction, the eccentric surface oof the cam will again elevate the fly l, and consequently close the vjaws. Thus, the opening and closing of the jaws is accomplished bypositive force, and the action is invariable at all times. 'l

The device of the hook and iiy for accomplishing this action isexceedingly simpleand effective. Its use has a specific relation to theopening and closing of the jaws, which, from the peculiar motion,`cannot be operated by the ordinary cam of permutation locks, whichsimply moves the bolt 'hack and forward in a longitu dinal direction. Itwill be seen that the action in my case is vertical instead oflongitudinal. 1

The other fly, m, is intended to act in connection with a weight, H,pivoted at p, so as toswing freely, and having a bearing, g,(preferablya friction-roller,) which strikes under the ily. This holdsthclever G elevated,

` so that the dog-will be raiscdfrom the edge of the wheels at alltimes, except when a cam projection; r, of the cam` (preferably, also, africtionroller,) strikes a projection, s, of the weight, at which timethe ily m will be disengaged from the bearing, g, and the dog willmomentarily fall upon thc wheels. This actiou-of throwing the weight oifis'necessary to allow the dog to fall into the notches when thecombination is set. The device above describedfor elevating the dog fromthe wheels is ofthe simplest character. Theweight .will perform theaction positivcly,vat all times, and cannot easily get disarranged. Thesame action keeps the ily l from the edgeof the` cam D. A plate, I, ofsimilar form to H., may be attached rigidly on the opposite side of thepivot, as shown in fig. 1, to give a pleasing e'ect, The inner end ofthe spindle, resting in the cam-head, is ilattcned, or. provided with asquare side, as shown at t, (iig. 3,) and a conical or tapering pin, u.,with a screw-head, '0, is passed through the cam-head, resting algainstthis flattened'surfaee, as clearly shown. This prevents the spindlefrom"turning, and it can be made perfectly tight at any time by screwing incloser, sothat there can be no rattling p i or play of the parts. By theremoval of the tapering pin it will be seen that the spindle can beturned out or in at any time, so as to increase or lessen its length,tovadapt it to doors of different thicknesses, an effect that isnecessary in the ordinary application of loclcs. A clamping shoulder,held up by two screws against' the attened end of the spindle, hasbefore been employed, but such is not onl'yliable to get detached by theaction, but it is also expensive, and in the way ofthe other parts. Myconical pin is simple, out of the way, and is not liable to get out ofplace, and it has the superior advantage of tightening up eectually. Thecombination wheels are similar in construction to those of my aforesaidpatent, but I have added, in combination with the special constructionthere shown, the feature of intermatching teeth Vfor holding the centrein place when the two platesv are clamped together. The wheel consistsoftwo plates or sides, w w, which are clamped together to hold Vtheadjusting-centre z between them by the double-shouldered screw y, which,by turning, raises and lowers the outer plate. In the old wheel thusconstructed, the centre, z, being smooth, might under some circumstancesslip in its bearing if sudden violence were offered, or if the clampingwere not very tight. To obviate all diiculty of this kind, I provide theinner edge of the centre .2 with a series ofteeth, e, and also providethe plate w with a segment of similar teeth, e', as clearly shown iniig. 5. These'teeth, clamping together, e'ect nally prevent-any movementof the centre. At the same time, the teeth are of such gauge .that whenthe Vplates of the wheel are unclamped they separate, so that thecentrercan be moved by the application of the key Ic in the socket j ofthe screw y. A key, L, is employed for raising the weight H away fromcontact with the ly m, by simply inserting said key in a hole in theback plate of the lock, and under the weight. The object' of this is toallow the dog to fall into the notches of the wheels, and hold saidwheels in place against turning, while the centres of the wheels arebeing changed to a different combination. Asharp-edged projection, f,(iig. 1,) is cast in the lock-case, opposite the edges of the wheels,and said edges are provided 'with lines g, which come opposite theprojection when the notches of the wheels are in position to receive thearm z'. This arrange-v ment is for the purpose of indicating theposition of the wheels to the eye when the lock is open.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination of the weight H with the ily m of the lever G, andthe wheels C C C, operatingin the manner and for the purposesubstantially as herein set forth.

2. The combination of thc cam-hook n, and eccentric surface o, with thefly l of lover G, operating substantially in the manner and for thepurpose set forth. v

3. The combination and arrangement of the conical or tapering screw-pinu` with the flattened side of the spindle B, operating in the manner andfor the purpose set forth.

4. The employment of the intermatching teeth e e', in combination withthe clamping-plates ww', and screwl y, arranged and operating asspecified. i

v In witness whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

CHARLES FLESCH.

Witnesses:

R. F. Oseoon, J. A. DAVIS.

